Solution: A 91 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 380 N . For the first 15 m the floor is frictionless, and for the next 15 m the coefficient of fricti

Problem

A 91 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 380 N . For the first 15 m the floor is frictionless, and for the next 15 m the coefficient of friction is 0.23.